Guide for die plates



Jan. C. H- BOYD GUIDE FOR DIE PLATES Filed July 1922 Patented Jan. 11, 1927.

UNITED STATES PATENT OFFICE.

GUIDE FOR DIE PLATES.

Application filed Ju1y 24, 1922. Serial No. 577,152.

This invention relates to guides for die plates whereby a pipe or other article to be threaded can be held in proper position relative to the cutting dies without the neces- 6 sity of utilizing long arms such as heretofore employed generally for holding the pipe or other article in position.

Another object is to provide a guide which can be attached to the die plate or can be 10 formed integral therewith.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from 20 the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings Figure 1 is an elevation of a die plate having a guide such as constitutes the present invention, attached thereto.

Figure 2 is a section on line 2-2, Figure 1.

Figure 3 is a view similar to Figure 2 but showing a slightly modified construction.

Referring to the figures by characters of reference 1 designates an angular die plate of the usual construction. In the present instance it is formed, at diametrically opposed points, with transverse threaded openings 2. These openings receive screws 3 which serve to bind upon the plate the end portions 4 of a guide 5 in the form of a yoke. This yoke projects outwardly from the face of the die plate and is formed, at its center, with an opening 6 of such size as to receive the article to be threaded and to fit snugly thereon. In the present instance this article has been indicated at 7 and it will be apparent that when the guide is in position the article will be properly held so as to be acted on by the cutters of the die as said die is rotated with a wrench after the manner of a nut. In the form shown in Figures 1 and 2 the guide can be detached and others substituted therefor when articles of different sizes are to be threaded. If preferred, however, the die can be made integral with the die plate as shown in Figure 3. In this figure the die plate has been indicated at 8 and the guide at 9, the outstanding terminals 10 of the guide being welded to the die plate. In other respects this modified structure is the same as that heretofore described.

What is claimed is: v

The combination, with an angular die plate for engagement and actuation by a monkey wrench, said plate havinga Work receiving opening and cutters projecting intothe opening from the die plate, of a onepiece guide arranged diametrically upon one face of the plate and including a relatively deep central yoke bridging the opening and having oppositely projecting terminals, there being an opening in the yoke of such size as to receive and center the work extended into the die plate, the terminals of the guide being flush with opposed corner portions of the plate, and means extending through the terminals and into the plate for detachably securing said guide to the plate.

In testimony that I have claimed the foregoing as my own, I have hereto aflixed my signature.

CHARLES HENRY BOYD. 

